IP Host Lookup and Disable DNS 1 Point

Configure local IP host addresses on each router (R1 through R5) so that when an EXEC or privileged user types the router name (R1, R2, R3, R4, or R5), the user can ping or telnet without having to type the full IP address.

Do not configure a DNS server on any router, and disable DNS lookup entries so that incorrect commands on the EXEC or PRIV prompt are not sent to any DNS server. (Hint: This saves you time as well; the IOS command no ip domain-lookup disables DNS queries.)

IP Host Lookup and Disable DNS Solution

To configure local host lookups, use the IOS command ip host name ip address.